# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

FINAL_LIBRARY = 'js'

if CONFIG['MOZ_SYSTEM_FFI']:
    OS_LIBS += CONFIG['MOZ_FFI_LIBS']
else:
    ALLOW_COMPILER_WARNINGS = True
    NO_VISIBILITY_FLAGS = True

    CONFIGURE_DEFINE_FILES += [
        '../../../js/src/ctypes/libffi/fficonfig.h',
    ]
    GENERATED_FILES += [
        '../../../js/src/ctypes/libffi/include/ffi.h',
    ]
    ffi_h = GENERATED_FILES['../../../js/src/ctypes/libffi/include/ffi.h']
    ffi_h.script = 'subst_header.py'
    ffi_h.inputs = ['../../../js/src/ctypes/libffi/include/ffi.h.in']

    LOCAL_INCLUDES += [
        '!/js/src/ctypes/libffi',
        '!/js/src/ctypes/libffi/include',
        '/js/src/ctypes/libffi/include',
        '/js/src/ctypes/libffi/src/%s' % CONFIG['FFI_TARGET_DIR'],
    ]

    DEFINES.update({
        'TARGET': CONFIG['FFI_TARGET'],
        CONFIG['FFI_TARGET']: True,
        'FFI_NO_RAW_API': True,
        'HAVE_AS_ASCII_PSEUDO_OP': True,
        'HAVE_AS_STRING_PSEUDO_OP': True,
    })

# This should NEVER be true on 32-bit x86 systems. It's called x86_64 unwind 
# section type for a reason. By rights the way it was before should have broken
# all 32-bit builds on x86.

    if CONFIG['FFI_TARGET'] == 'X86':
        DEFINES['HAVE_AS_X86_64_UNWIND_SECTION_TYPE'] = False
    else:
        DEFINES['HAVE_AS_X86_64_UNWIND_SECTION_TYPE'] = True

    if CONFIG['MOZ_DEBUG']:
        DEFINES['FFI_DEBUG'] = True
        if not CONFIG['MOZ_NO_DEBUG_RTL']:
            DEFINES['USE_DEBUG_RTL'] = True
        SOURCES += [
            '/js/src/ctypes/libffi/src/debug.c',
        ]

    if CONFIG['OS_TARGET'] not in ('WINNT', 'Darwin'):
        DEFINES['HAVE_HIDDEN_VISIBILITY_ATTRIBUTE'] = True

# Solaris uses datarel encoding for x86. This causes a lot of really stupid 
# problems, like the vast majority of x86 assembler not being considered PIC 
# on Solaris.

    if CONFIG['INTEL_ARCHITECTURE'] and CONFIG['OS_TARGET'] != 'SunOS':
        DEFINES['HAVE_AS_X86_PCREL'] = True

# Which is why they apparently don't do this anymore on amd64.

    if CONFIG['FFI_TARGET'] == 'X86_64' and CONFIG['OS_TARGET'] == 'SunOS':
        DEFINES['HAVE_AS_X86_PCREL'] = True

    # Don't bother setting EH_FRAME_FLAGS on Windows.
    # Quoted defines confuse msvcc.sh, and the value isn't used there.
    if CONFIG['OS_TARGET'] != 'WINNT':
        # Solaris seems to require EH_FRAME to be writable even on x86.
        # It works fine most of the time and there's no rule against it, 
        # but it causes a lot of weird problems.
        if CONFIG['FFI_TARGET'] == 'ARM':
            DEFINES['EH_FRAME_FLAGS'] = '"aw"'
        elif CONFIG['FFI_TARGET'] == 'X86' and CONFIG['OS_TARGET'] == 'SunOS':
            DEFINES['EH_FRAME_FLAGS'] = '"aw"'
        else:
            DEFINES['EH_FRAME_FLAGS'] = '"a"'

    if CONFIG['CLANG_CL']:
        ASFLAGS += ['-clang-cl']

    # Common source files.
    SOURCES += [
        '/js/src/ctypes/libffi/src/closures.c',
        '/js/src/ctypes/libffi/src/java_raw_api.c',
        '/js/src/ctypes/libffi/src/prep_cif.c',
        '/js/src/ctypes/libffi/src/raw_api.c',
        '/js/src/ctypes/libffi/src/types.c',
    ]

    # Per-platform sources and flags.
    ffi_srcs = ()
    if CONFIG['FFI_TARGET'] == 'ARM':
        ffi_srcs = ('sysv.S', 'ffi.c')
        if CONFIG['CLANG_CXX']:
            ASFLAGS += ['-no-integrated-as']
    elif CONFIG['FFI_TARGET'] == 'AARCH64':
        ffi_srcs = ('sysv.S', 'ffi.c')
    elif CONFIG['FFI_TARGET'] == 'X86':
        ffi_srcs = ('ffi.c', 'sysv.S', 'win32.S')
    elif CONFIG['FFI_TARGET'] == 'X86_64':
        ffi_srcs = ('ffi64.c', 'unix64.S', 'ffi.c', 'sysv.S')
    elif CONFIG['FFI_TARGET'] == 'X86_WIN32':
        # MinGW Build for 32 bit
        if CONFIG['CC_TYPE'] == 'gcc':
            DEFINES['SYMBOL_UNDERSCORE'] = True
        ffi_srcs = ('ffi.c', 'win32.S')
    elif CONFIG['FFI_TARGET'] == 'X86_WIN64':
        ffi_srcs = ('ffi.c', 'win64.S')
        ASFLAGS += ['-m64']
    elif CONFIG['FFI_TARGET'] == 'X86_DARWIN':
        DEFINES['FFI_MMAP_EXEC_WRIT'] = True
        if CONFIG['OS_TEST'] != 'x86_64':
            ffi_srcs = ('ffi.c', 'darwin.S', 'ffi64.c', 'darwin64.S',
                        'win32.S')
            DEFINES['SYMBOL_UNDERSCORE'] = True
        else:
            ffi_srcs = ('ffi.c', 'darwin.S', 'ffi64.c', 'darwin64.S')

    SOURCES += [
        '/js/src/ctypes/libffi/src/%s/%s' % (CONFIG['FFI_TARGET_DIR'], s)
        for s in sorted(ffi_srcs)
    ]
